Medium severity
P0066Low Voltage in Injector Circuit with Air Supply
Part
Air Injector Valve
Part price
$63
At a workshop
$100
You save
$38
How to read code P0066
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
66
Fault number
Specific fault within the subsystem
Symptoms
- Check Engine light on the dash
- Uneven engine performance
- Poor response to throttle
Possible causes
- Electrical circuit interruption
- Corrosion at the injector connector
- Faulty engine control module
Diagnostic steps
- 1Use a multimeter to check voltage at the injector connector
- 2Inspect the wiring and pins for corrosion
- 3Verify proper operation of fuses and relays
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Frequently asked questions about P0066
What does code P0066 mean?
P0066: Low Voltage in Injector Circuit with Air Supply.
What are the symptoms of code P0066?
Check Engine light on the dash; Uneven engine performance; Poor response to throttle.
What causes code P0066?
Electrical circuit interruption; Corrosion at the injector connector; Faulty engine control module.
Can I drive with code P0066?
SAFE TO DRIVE – The fault does not immobilise the car, but diagnose it as soon as possible.
How much does it cost to fix code P0066?
The part (Air Injector Valve) costs about $63, and a mechanic’s labour about $38.
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